BUD SELECTION IN THE VALENCIA ORANGE 
31 
be very similar to those of the normal strain. Recent progeny tests 
of some of these limb variations indicate that this strain may be 
isolated through the selection of buds from limb variations which 
produce all navel fruits. 
The finding of limb variations bearing navel fruits in Valencia 
trees is of special interest because it probably explains the origin 
of the Navelencia variety, which was grown commercially during 
former years to a limited extent in the Southwest. As this strain 
was not found to possess any advantages as compared with the 
Valencia strain, its commercial propagation has been abandoned, 
and most of the established trees of the variety have been top-worked. 
Limb variations of trees of the Valencia strain bearing dry fruits 
have been found in two orchards. These fruits, so far as juice 
content is concerned, resemble those of the Dry strain of the 
Fig. 18. — Long yellow pebbled Valencia orange fruits with orange-colored stripes. These 
were borne on the progeny tree No. 10-33, as listed in Table 14, which was propagated 
from a similar limb variation. Riverside, Calif., June, 1925. (About three-fourths 
natural size) 
Washington Navel orange which have been described in a previous 
publication (5). 
Although the progeny tests of the Dry strain of the Valencia 
orange are incomplete as yet, enough evidence has been obtained to 
prove that this strain has been perpetuated through bud propaga- 
tion. (Fig. 21.) 
A limb variation bearing very small and ribbed fruits (fig. 22) 
with persistent styles has been found in an otherwise normal tree 
of the Valencia strain. Progeny tests of this variation now under 
way indicate that the characteristics of this limb variation have been 
transmitted to its progenies through bud propagation. 
Several limb variations bearing oranges of normal Valencia ap- 
pearance except for the presence of reddish knobs or streaks on 
the skin have been observed from time to time in the course of the 
tree-estimate studies of Valencia orchards. Others producing fairly 
